GB1527160A - Clock signal and auxiliary signal transmission system - Google Patents
Clock signal and auxiliary signal transmission systemInfo
- Publication number
- GB1527160A GB1527160A GB3643076A GB3643076A GB1527160A GB 1527160 A GB1527160 A GB 1527160A GB 3643076 A GB3643076 A GB 3643076A GB 3643076 A GB3643076 A GB 3643076A GB 1527160 A GB1527160 A GB 1527160A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signals
- auxiliary
- signal
- receivers
- sept
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
- G06F1/10—Distribution of clock signals, e.g. skew
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Dc Digital Transmission (AREA)
- Bidirectional Digital Transmission (AREA)
Abstract
1527160 Multiplexing INTERNATIONAL STANDARD ELECTRIC CORP 2 Sept 1976 [10 Sept 1975] 36430/76 Heading H4M In a system such as a computer or a telephone exchange in which clocking signals from a transmitter are sent to different receivers, auxiliary signals for use by the receivers, e.g. for the energization of frequency dividers in the receivers, are transmitted by modifying the clocking signals so that a separate channel for the auxiliary signals is not required. As shown, periodic two-level clocking signals H having transitions in a first direction and in a second direction are produced by the transmitter. An auxiliary signal A to be transmitted together with the clock signals produces a pulse F which is added to the signal H so that a rising edge of the latter is shifted in time, as shown by a double line in waveform T of the figure. The amount of time shift is a function of the auxiliary signal A, and the receiver is adapted to reconstitute the clock signal H and the auxiliary signals A from the received waveform T, suitable circuit arrangements using a retriggerable monostable to detect the time shift being described with reference to Figs. 1, 4 and 7 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7527702A FR2324180A1 (en) | 1975-09-10 | 1975-09-10 | CLOCK SIGNAL AND AUXILIARY SIGNAL TRANSMISSION SYSTEM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1527160A true GB1527160A (en) | 1978-10-04 |
Family
ID=9159812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3643076A Expired GB1527160A (en) | 1975-09-10 | 1976-09-02 | Clock signal and auxiliary signal transmission system |
Country Status (9)
| Country | Link |
|---|---|
| AU (1) | AU505263B2 (en) |
| BE (1) | BE846032R (en) |
| BR (1) | BR7605981A (en) |
| CH (1) | CH600720A5 (en) |
| ES (1) | ES451439A1 (en) |
| FR (1) | FR2324180A1 (en) |
| GB (1) | GB1527160A (en) |
| IT (1) | IT1068700B (en) |
| NL (1) | NL7609938A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692932A (en) * | 1985-02-07 | 1987-09-08 | Alcatel | Triplicated clock distribution device for use when each clock signal comprises a synchonization signal |
| US4694291A (en) * | 1985-02-07 | 1987-09-15 | Alcatel | Device for transmitting a clock signal accompanied by a synchronization signal |
| US4698826A (en) * | 1985-02-07 | 1987-10-06 | Alcatel | Clock repeater for triplicated clock distributor |
| WO2001050231A2 (en) * | 1999-12-30 | 2001-07-12 | Sun Microsystems, Inc. | Encoded clocks to distribute multiple clock signals to multiple devices in a computer system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2433878B1 (en) * | 1978-08-18 | 1986-03-28 | Labo Cent Telecommunicat | CLOCK CIRCUIT FOR ELECTRONIC ASSEMBLY |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1274269A (en) * | 1969-05-08 | 1972-05-17 | Zentronik Veb K | Method of producing clock pulses |
| US3725793A (en) * | 1971-12-15 | 1973-04-03 | Bell Telephone Labor Inc | Clock synchronization arrangement employing delay devices |
-
1975
- 1975-09-10 FR FR7527702A patent/FR2324180A1/en active Granted
-
1976
- 1976-09-02 GB GB3643076A patent/GB1527160A/en not_active Expired
- 1976-09-08 NL NL7609938A patent/NL7609938A/en not_active Application Discontinuation
- 1976-09-09 IT IT2700876A patent/IT1068700B/en active
- 1976-09-10 CH CH1150676A patent/CH600720A5/xx not_active IP Right Cessation
- 1976-09-10 BR BR7605981A patent/BR7605981A/en unknown
- 1976-09-10 BE BE2055294A patent/BE846032R/en active
- 1976-09-10 ES ES451439A patent/ES451439A1/en not_active Expired
- 1976-09-13 AU AU17676/76A patent/AU505263B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692932A (en) * | 1985-02-07 | 1987-09-08 | Alcatel | Triplicated clock distribution device for use when each clock signal comprises a synchonization signal |
| US4694291A (en) * | 1985-02-07 | 1987-09-15 | Alcatel | Device for transmitting a clock signal accompanied by a synchronization signal |
| US4698826A (en) * | 1985-02-07 | 1987-10-06 | Alcatel | Clock repeater for triplicated clock distributor |
| WO2001050231A2 (en) * | 1999-12-30 | 2001-07-12 | Sun Microsystems, Inc. | Encoded clocks to distribute multiple clock signals to multiple devices in a computer system |
| WO2001050231A3 (en) * | 1999-12-30 | 2002-02-21 | Sun Microsystems Inc | Encoded clocks to distribute multiple clock signals to multiple devices in a computer system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU505263B2 (en) | 1979-11-15 |
| BE846032R (en) | 1977-03-10 |
| IT1068700B (en) | 1985-03-21 |
| FR2324180B1 (en) | 1979-09-14 |
| BR7605981A (en) | 1977-08-23 |
| AU1767676A (en) | 1978-03-23 |
| FR2324180A1 (en) | 1977-04-08 |
| CH600720A5 (en) | 1978-06-30 |
| NL7609938A (en) | 1977-03-14 |
| ES451439A1 (en) | 1978-01-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |